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DISTRHO Plugin Framework
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DPF/distrho/DistrhoUI_macOS.mm

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  1. /*

  2.  * DISTRHO Plugin Framework (DPF)

  3.  * Copyright (C) 2012-2021 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * Permission to use, copy, modify, and/or distribute this software for any purpose with

  6.  * or without fee is hereby granted, provided that the above copyright notice and this

  7.  * permission notice appear in all copies.

  8.  *

  9.  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD

  10.  * TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN

  11.  * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL

  12.  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER

  13.  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN

  14.  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

  15.  */

  16. 

  17. #ifndef PUGL_NAMESPACE

  18. # error PUGL_NAMESPACE must be set when compiling this file

  19. #endif

  20. 

  21. #include "src/DistrhoPluginChecks.h"

  22. #include "src/DistrhoDefines.h"

  23. 

  24. #if DISTRHO_PLUGIN_HAS_EXTERNAL_UI

  25. #import <Cocoa/Cocoa.h>

  26. #include <algorithm>

  27. #include <cmath>

  28. 

  29. START_NAMESPACE_DISTRHO

  30. double getDesktopScaleFactor(const uintptr_t parentWindowHandle)

  31. {

  32.     // allow custom scale for testing

  33.     if (const char* const scale = getenv("DPF_SCALE_FACTOR"))

  34.         return std::max(1.0, std::atof(scale));

  35. 

  36.     if (NSView* const parentView = (NSView*)parentWindowHandle)

  37.         if (NSWindow* const parentWindow = [parentView window])

  38.            return [parentWindow screen].backingScaleFactor;

  39. 

  40.     return [NSScreen mainScreen].backingScaleFactor;

  41. }

  42. END_NAMESPACE_DISTRHO

  43. #else // DISTRHO_PLUGIN_HAS_EXTERNAL_UI

  44. #include "../dgl/Base.hpp"

  45. 

  46. #define DISTRHO_MACOS_NAMESPACE_MACRO_HELPER(DGL_NS, SEP, PUGL_NS, INTERFACE) DGL_NS ## SEP ## PUGL_NS ## SEP ## INTERFACE

  47. #define DISTRHO_MACOS_NAMESPACE_MACRO(DGL_NS, PUGL_NS, INTERFACE) DISTRHO_MACOS_NAMESPACE_MACRO_HELPER(DGL_NS, _, PUGL_NS, INTERFACE)

  48. 

  49. #define PuglCairoView      DISTRHO_MACOS_NAMESPACE_MACRO(DGL_NAMESPACE, PUGL_NAMESPACE, CairoView)

  50. #define PuglOpenGLView     DISTRHO_MACOS_NAMESPACE_MACRO(DGL_NAMESPACE, PUGL_NAMESPACE, OpenGLView)

  51. #define PuglStubView       DISTRHO_MACOS_NAMESPACE_MACRO(DGL_NAMESPACE, PUGL_NAMESPACE, StubView)

  52. #define PuglVulkanView     DISTRHO_MACOS_NAMESPACE_MACRO(DGL_NAMESPACE, PUGL_NAMESPACE, VulkanView)

  53. #define PuglWindow         DISTRHO_MACOS_NAMESPACE_MACRO(DGL_NAMESPACE, PUGL_NAMESPACE, Window)

  54. #define PuglWindowDelegate DISTRHO_MACOS_NAMESPACE_MACRO(DGL_NAMESPACE, PUGL_NAMESPACE, WindowDelegate)

  55. #define PuglWrapperView    DISTRHO_MACOS_NAMESPACE_MACRO(DGL_NAMESPACE, PUGL_NAMESPACE, WrapperView)

  56. 

  57. #import "src/pugl.mm"

  58. #endif // DISTRHO_PLUGIN_HAS_EXTERNAL_UI